Camera optical lens

ABSTRACT

A camera optical lens is provided, including from an object side to an image side: a first lens having positive refractive power; a second lens having negative refractive power; a third lens having positive refractive power; a fourth lens having negative refractive power; a fifth lens having positive refractive power; a sixth lens having negative refractive power; a seventh lens having positive refractive power; an eighth lens having positive refractive power; and a ninth lens having negative refractive power, wherein the camera optical lens satisfies following conditions: 2.20≤f1/f≤5.00; and 3.00≤d13/d14≤15.00. The above camera optical lens can meet design requirements for large aperture, wide angle and ultra-thinness, while maintaining good imaging quality.

TECHNICAL FIELD

The present invention relates to the technical field of optical lensand, in particular, to a camera optical lens suitable for handheldterminal devices such as smart phones or digital cameras, and imagingdevices such as monitors or PC lenses.

BACKGROUND

With the emergence of smart phones in recent years, the demand forminiature camera lens is continuously increasing, but in general,photosensitive devices of camera lens are nothing more than a ChargeCoupled Device (CCD) or a Complementary Metal-Oxide Semiconductor Sensor(CMOS Sensor), and as progress of semiconductor manufacturing technologymakes a pixel size of the photosensitive devices become smaller, inaddition, a current development trend of electronic products requiresbetter performance with thinner and smaller dimensions, miniature cameralenses with good imaging quality therefore have become a mainstream inthe market.

In order to obtain better imaging quality, a camera lens traditionallyequipped in a camera of a mobile phone generally constitutes three,four, even five or six lenses. However, with development of technologyand increase in diversified requirements of users, a camera lensconstituted by nine lenses gradually appears in camera design, in casethat a pixel area of the photosensitive device is continuously reducedand requirements on image quality is continuously increased. Althoughthe common camera lens constituted by nine lenses has good opticalperformance, its characteristics such as refractive power, lens spacingand lens shape still need to be optimized, therefore the camera lens maynot meet design requirements for some optical performances such as largeaperture, ultra-thinness and wide angle while maintaining good imagingquality.

SUMMARY

In view of the above problems, the present invention provides a cameraoptical lens, which can meet design requirements for some opticalperformances such as large aperture, ultra-thinness and wide angle whilemaintaining good imaging quality.

Embodiments of the present invention provides a camera optical lens,including from an object side to an image side:

-   -   a first lens having positive refractive power;    -   a second lens having negative refractive power;    -   a third lens having positive refractive power;    -   a fourth lens having negative refractive power;    -   a fifth lens having positive refractive power;    -   a sixth lens having negative refractive power;    -   a seventh lens having positive refractive power;    -   an eighth lens having positive refractive power; and    -   a ninth lens having negative refractive power,    -   wherein the camera optical lens satisfies following conditions:

2.20≤f1/f≤5.00; and

3.00≤d13/d14≤15.00,

-   -   where    -   f denotes a focal length of the camera optical lens;    -   f1 denotes a focal length of the first lens;    -   d13 denotes an on-axis thickness of the seventh lens; and    -   d14 denotes an on-axis distance from an image side surface of        the seventh lens to an object side surface of the eighth lens.

As an improvement, the camera optical lens satisfies a followingcondition:

(R7+R8)/(R7−R8)≤−1.90,

-   -   where    -   R7 denotes a central curvature radius of an object side surface        of the fourth lens; and    -   R8 denotes a central curvature radius of an image side surface        of the fourth lens.

As an improvement, the camera optical lens satisfies followingconditions:

−16.67≤(R1+R2)/(R1−R2)≤−2.08; and

0.03≤d1/TTL≤0.12,

-   -   where    -   R1 denotes a central curvature radius of an object side surface        of the first lens;    -   R2 denotes a central curvature radius of an image side surface        of the first lens;    -   d1 denotes an on-axis thickness of the first lens; and    -   TTL denotes a total optical length from the object side surface        of the first lens to an image plane of the camera optical lens        along an optic axis.

As an improvement, the camera optical lens satisfies followingconditions:

−11.63≤f2/f≤−2.30;

3.29≤(R3+R4)/(R3−R4)≤16.09; and

0.02≤d3/TTL≤0.09,

-   -   where    -   f2 denotes a focal length of the second lens;    -   R3 denotes a central curvature radius of an object side surface        of the second lens;    -   R4 denotes a central curvature radius of an image side surface        of the second lens;    -   d3 denotes an on-axis thickness of the second lens; and    -   TTL denotes a total optical length from an object side surface        of the first lens to an image plane of the camera optical lens        along an optic axis.

As an improvement, the camera optical lens satisfies followingconditions:

0.49≤f3/f≤1.96;

−0.71≤(R5+R6)/(R5−R6)≤−0.20; and

0.04≤d5/TTL≤0.13,

-   -   where    -   f3 denotes a focal length of the third lens;    -   R5 denotes a central curvature radius of an object side surface        of the third lens;    -   R6 denotes a central curvature radius of an image side surface        of the third lens;    -   d5 denotes an on-axis thickness of the third lens; and    -   TTL denotes a total optical length from an object side surface        of the first lens to an image plane of the camera optical lens        along an optic axis.

As an improvement, the camera optical lens satisfies followingconditions:

−519.04≤f4/f≤−5.06; and

0.02≤d7/TTL≤0.06,

-   -   where    -   f4 denotes a focal length of the fourth lens;    -   d7 denotes an on-axis thickness of the fourth lens; and    -   TTL denotes a total optical length from an object side surface        of the first lens to an image plane of the camera optical lens        along an optic axis.

As an improvement, the camera optical lens satisfies followingconditions:

1.47≤f5/f≤5.46;

0.65≤(R9+R10)/(R9−R10)≤2.25; and

0.05≤d9/TTL≤0.15,

-   -   where    -   f5 denotes a focal length of the fifth lens;    -   R9 denotes a central curvature radius of an object side surface        of the fifth lens;    -   R10 denotes a central curvature radius of an image side surface        of the fifth lens;    -   d9 denotes an on-axis thickness of the fifth lens; and    -   TTL denotes a total optical length from an object side surface        of the first lens to an image plane of the camera optical lens        along an optic axis.

As an improvement, the camera optical lens satisfies followingconditions:

−3.29≤f6/f≤−0.88;

−5.55≤(R11+R12)/(R11−R12)≤−1.48; and

0.01≤d11/TTL≤0.04,

-   -   where    -   f6 denotes a focal length of the sixth lens;    -   R11 denotes a central curvature radius of an object side surface        of the sixth lens;    -   R12 denotes a central curvature radius of an image side surface        of the sixth lens;    -   d11 denotes an on-axis thickness of the sixth lens; and    -   TTL denotes a total optical length from an object side surface        of the first lens to an image plane of the camera optical lens        along an optic axis.

As an improvement, the camera optical lens satisfies followingconditions:

2.92≤f7/f≤46.64;

0.10≤(R13+R14)/(R13−R14)≤10.18; and

0.02≤d13/TTL≤0.11,

-   -   where    -   f7 denotes a focal length of the seventh lens;    -   R13 denotes a central curvature radius of an object side surface        of the seventh lens;    -   R14 denotes a central curvature radius of the image side surface        of the seventh lens; and    -   TTL denotes a total optical length from an object side surface        of the first lens to an image plane of the camera optical lens        along an optic axis.

As an improvement, the camera optical lens satisfies followingconditions:

0.49≤f8/f≤1.89;

−4.53≤(R15+R16)/(R15−R16)≤−0.73; and

0.06≤d15/TTL≤0.21,

-   -   where    -   f8 denotes a focal length of the eighth lens;    -   R15 denotes a central curvature radius of an object side surface        of the eighth lens;    -   R16 denotes a central curvature radius of an image side surface        of the eighth lens;    -   d15 denotes an on-axis thickness of the eighth lens; and    -   TTL denotes a total optical length from an object side surface        of the first lens to an image plane of the camera optical lens        along an optic axis.

As an improvement, the camera optical lens satisfies followingconditions:

−1.62≤f9/f≤−0.49;

0.56≤(R17+R18)/(R17−R18)≤1.91; and

0.02≤d17/TTL≤0.07,

-   -   where    -   f9 denotes a focal length of the ninth lens;    -   R17 denotes a central curvature radius of an object side surface        of the ninth lens;    -   R18 denotes a central curvature radius of an image side surface        of the ninth lens;    -   d17 denotes an on-axis thickness of the ninth lens; and    -   TTL denotes a total optical length from an object side surface        of the first lens to an image plane of the camera optical lens        along an optic axis.

The present invention has following beneficial effects: the cameraoptical lens according to the present invention not only has excellentoptical performances, but also has large aperture, wide angle, andultra-thinness properties, which is especially suitable for mobile phonecamera lens components composed of high-pixel CCD, CMOS and otherimaging elements and WEB camera lens.

BRIEF DESCRIPTION OF DRAWINGS

Many aspects of the exemplary embodiments can be better understood withreference to following drawings. The components in the drawings are notnecessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present invention. Moreover,in the drawings, like reference numerals designate corresponding partsthroughout the several views.

FIG. 1 is a structural schematic diagram of a camera optical lensaccording to Embodiment 1 of the present invention;

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1;

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1;

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1;

FIG. 5 is a structural schematic diagram of a camera optical lensaccording to Embodiment 2 of the present invention;

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5;

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5;

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5;

FIG. 9 is a structural schematic diagram of a camera optical lensaccording to Embodiment 3 of the present invention;

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9;

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9; and

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9.

DESCRIPTION OF EMBODIMENTS

In order to better illustrate the objectives, technical solutions andadvantages of the present invention, the present invention will bedescribed in further detail below with reference to the accompanyingdrawings and embodiments. It should be understood that the specificembodiments described herein are only used to explain the presentinvention but are not used to limit the present invention.

Embodiment 1

Referring to FIG. 1, the present invention provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 according to Embodiment1 of the present invention. The camera optical lens 10 includes ninelenses. The camera optical lens 10 includes, from an object side to animage side, an aperture S1, a first lens L1, a second lens L2, a thirdlens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventhlens L7, an eighth lens L8, and a ninth lens L9. An optical element suchas an optical filter GF may be arranged between the ninth lens L9 and animage plane Si.

In this embodiment, the first lens L1 has positive refractive power, thesecond lens L2 has negative refractive power, the third lens L3 haspositive refractive power, the fourth lens L4 has negative refractivepower, the fifth lens L5 has positive refractive power, the sixth lensL6 has negative refractive power, the seventh lens L7 has positiverefractive power, the eighth lens L8 has positive refractive power, andthe ninth lens L9 has negative refractive power.

In this embodiment, the first lens L1, the second lens L2, the thirdlens L3, the fourth lens L4, the fifth lens L5, the sixth lens L6, theseventh lens L7, the eighth lens L8, and the ninth lens L9 are each madeof a plastic material. In other embodiments, the lenses may also be madeof a material other than the plastic material.

In this embodiment, a focal length of the camera optical lens 10 isdefined as f, and a focal length of the first lens L1 is defined as f1.The focal length f and the focal length f1 satisfy a followingcondition: 2.20≤f1/f≤5.00, which specifies a ratio of the focal lengthof the first lens to a total focal length of the system. When the ratiosatisfies the above condition, a spherical aberration and a fieldcurvature of the system may be effectively balanced.

An on-axis thickness of the seventh lens L7 is defined as d13, anon-axis distance from an image side surface of the seventh lens L7 to anobject side surface of the eighth lens L8 is defined as d14. The on-axisthickness d13 and the on-axis distance d14 satisfy a followingcondition: 3.00≤d13/ d14≤15.00, which specifies a ratio of the on-axisthickness of the seventh lens to an air spacing between the seventh lensand the eighth lens. Within the range of the above condition, it isbeneficial to compress a total length of the optical system, therebyachieving an ultra-thinness effect. Optionally, the on-axis thicknessd13 and the on-axis distance d14 satisfy a following condition:3.08≤d13/d14≤14.78.

A central curvature radius of an object side surface of the fourth lensL4 is defined as R7, and a central curvature radius of an image sidesurface of the fourth lens L4 is defined as R8. The central curvatureradius R7 and the central curvature radius R8 satisfy a followingcondition: (R7+R8)/(R7−R8)≤−1.90, which specifies a shape of the fourthlens L4. Within the specified range of the condition, a degree ofdeflection of light passing through the lens may be alleviated, andaberrations may be effectively reduced. Optionally, the centralcurvature radius R7 and the central curvature radius R8 satisfy afollowing condition: −33.54≤(R7+R8)/(R7−R8)≤−1.93.

In this embodiment, the object side surface of the first lens L1 isconvex in a paraxial region, and the image side surface of the firstlens L1 is concave in the paraxial region.

A central curvature radius of the object side surface of the first lensL1 is defined as R1, and a central curvature radius of the image sidesurface of the first lens L1 is defined as R2. The central curvatureradius R1 and the central curvature radius R2 satisfy a followingcondition: −16.67≤(R1+R2)/(R1−R2)≤−2.08. The shape of the first lens L1is reasonably controlled so that the first lens L1 may effectivelycorrect spherical aberration of the system. Optionally, the centralcurvature radius R1 and the central curvature radius R2 satisfy afollowing condition: −10 .42≤(R1+R2)/(R1−R2)≤−2.60.

An on-axis thickness of the first lens L1 is defined as d1, and a totaloptical length from the object side surface of the first lens L1 to theimage plane Si of the camera optical lens along an optic axis is definedas TTL. The on-axis thickness L1 and the total optical length TTLsatisfy a following condition: 0.03≤d1/TTL≤0.12. Within the range of theabove condition, it is beneficial to achieve an ultra-thinness effect.Optionally, the on-axis thickness L1 and the total optical length TTLsatisfy a following condition: 0.05≤d1/TTL≤0.10.

In this embodiment, the object side surface of the second lens L2 isconvex in a paraxial region, and the image side surface of the secondlens L2 is concave in the paraxial region.

A focal length of the camera optical lens 10 is defined as f, and afocal length of the second lens L2 is defined as f2. The focal length fand the focal length f2 satisfy a following condition:−11.63≤f2/f≤−2.30. When the negative refractive power of the second lensL2 is controlled in the reasonable range, it is beneficial to correctaberration of the optical system. Optionally, the focal length f and thefocal length f2 satisfy a following condition: −7.27≤f2/f≤−2.87.

A central curvature radius of an object side surface of the second lensL2 is defined as R3, and a central curvature radius of an image sidesurface of the second lens L2 is defined as R4. The central curvatureradius R3 and the central curvature radius R4 satisfy a followingcondition: 3.29≤(R3+R4)/(R3−R4)≤16.09, which specifies a shape of thesecond lens L2. Within the range of the above condition, as the lensbecomes ultra-thinness and wide angle, it is beneficial to correcton-axis chromatic aberration. Optionally, the central curvature radiusR3 and the central curvature radius R4 satisfy a following condition:5.27≤(R3+R4)/(R3−R4)≤12.87.

An on-axis thickness of the second lens L2 is defined as d3, and a totaloptical length from the object side surface of the first lens L1 to theimage plane Si of the camera optical lens 10 along an optic axis isdefined as TTL. The on-axis thickness d3 and the total optical lengthTTL satisfy a following condition: 0.02≤d3/TTL≤0.09. Within the range ofthe above condition, it is beneficial to achieve an ultra-thinnesseffect. Optionally, the on-axis thickness d3 and the total opticallength TTL satisfy a following condition: 0.03≤d3/TTL≤0.07.

In this embodiment, the object side surface of the third lens L3 isconvex in a paraxial region, and the image side surface of the thirdlens L3 is convex in the paraxial region.

A focal length of the camera optical lens 10 is defined as f, and afocal length of the third lens L3 is defined as f3. The focal length fand the focal length f3 satisfy a following condition: 0.49≤f3/f≤1.96.With appropriate configuration of the refractive power, the system mayobtain better imaging quality and lower sensitivity. Optionally, thefocal length f and the focal length f3 satisfy a following condition:0.79≤f3/f≤1.57.

A central curvature radius of an object side surface of the third lensL3 is defined as R5, and a central curvature radius of an image sidesurface of the third lens L3 is defined as R6. The central curvatureradius R5 and the central curvature radius R6 satisfy a followingcondition: −0.71≤(R5+R6)/(R5−R6)≤−0.20. Within the specified range ofthe condition, a degree of deflection of light passing through the lensmay be alleviated, and aberrations may be effectively reduced.Optionally, the central curvature radius R5 and the central curvatureradius R6 satisfy a following condition: −0.45≤(R5+R6)/(R5−R6)≤−0.25.

An on-axis thickness of the third lens L3 is defined as d5, and a totaloptical length from the object side surface of the first lens L1 to theimage plane Si of the camera optical lens 10 along an optic axis isdefined as TTL. The on-axis thickness d5 and the total optical lengthTTL satisfy a following condition: 0.04≤d5/TTL≤0.13. Within the range ofthe above condition, it is beneficial to achieve an ultra-thinnesseffect. Optionally, the on-axis thickness d5 and the total opticallength TTL satisfy a following condition: 0.06≤d5/TTL≤0.10.

In this embodiment, the object side surface of the fourth lens L4 isconcave in a paraxial region, and the image side surface of the fourthlens L4 is convex in the paraxial region.

A focal length of the camera optical lens 10 is defined as f, and afocal length of the fourth lens L4 is defined as f4. The focal length fand the focal length f4 satisfy a following condition:−519.04≤f4/f≤−5.06. With appropriate configuration of the refractivepower, the system may obtain better imaging quality and lowersensitivity. Optionally, satisfy a following condition:−324.40≤f4/f≤−6.33.

An on-axis thickness of the fourth lens L4 is defined as d7, and a totaloptical length from the object side surface of the first lens L1 to theimage plane Si of the camera optical lens 10 along an optic axis isdefined as TTL. The on-axis thickness d7 and the total optical lengthTTL satisfy a following condition: 0.02≤d7/TTL≤0.06. Within the range ofthe above condition, it is beneficial to achieve an ultra-thinnesseffect. Optionally, the on-axis thickness d7 and the total opticallength TTL satisfy a following condition: 0.03≤d7/TTL≤0.05.

In this embodiment, the object side surface of the fifth lens L5 isconcave in a paraxial region, and the image side surface of the fifthlens L5 is convex in the paraxial region.

A focal length of the camera optical lens 10 is defined as f, and afocal length of the fifth lens L5 is defined as f5. The focal length fand the focal length f5 satisfy a following condition: 1.47≤f5/f≤5.46.The limitation on the fifth lens L5 may effectively make the camera lenshave a gentle light angle, thereby reducing tolerance sensitivity.Optionally, the focal length f and the focal length f5 satisfy afollowing condition: 2.35≤f5/f≤4.37.

A central curvature radius of an object side surface of the fifth lensL5 is defined as R9, and a central curvature radius of an image sidesurface of the fifth lens L5 is defined as R10. The central curvatureradius R9 and the central curvature radius R10 satisfy a followingcondition: 0.65≤(R9+R10)/(R9−R10)≤2.25, which specifies a shape of thefifth lens L5. Within the range of the above condition, it is beneficialto correct aberration of off-axis angle with the development ofultra-thinness and wide angle. Optionally, the central curvature radiusR9 and the central curvature radius R10 satisfy a following condition:1.04≤(R9+R10)/(R9−R10)≤1.80.

An on-axis thickness of the fifth lens L5 is defined as d9, and a totaloptical length from the object side surface of the first lens L1 to theimage plane Si of the camera optical lens 10 along an optic axis isdefined as TTL. The on-axis thickness d9 and the total optical lengthTTL satisfy a following condition: 0.05≤d9/TTL≤0.15. Within the range ofthe condition, it is beneficial to achieve an ultra-thinness effect.Optionally, the on-axis thickness d9 and the total optical length TTLsatisfy a following condition: 0.07≤d9/TTL≤0.12.

In this embodiment, the object side surface of the sixth lens L6 isconcave in a paraxial region, and the image side surface of the sixthlens L6 is convex in the paraxial region.

A focal length of the camera optical lens 10 is defined as f, and afocal length of the sixth lens L6 is defined as f6. The focal length fand the focal length f6 satisfy a following condition: −3.29≤f6/f≤−0.88.With appropriate configuration of the refractive power, the system mayobtain better imaging quality and lower sensitivity. Optionally, thefocal length f and the focal length f6 satisfy a following condition:−2.06≤f6/f≤−1.10.

A central curvature radius of an object side surface of the sixth lensL6 is defined as R11, and a central curvature radius of an image sidesurface of the sixth lens L6 is defined as R12. The central curvatureradius R11 and the central curvature radius R12 satisfy a followingcondition: −5.55≤(R11+R12)/(R11−R12)≤−1.48 , which specifies a shape ofthe sixth lens L6. Within the range of the above condition, it isbeneficial to correct aberration of off-axis angle with the developmentof ultra-thinness and wide angle. Optionally, the central curvatureradius R11 and the central curvature radius R12 satisfy a followingcondition: −3.47≤(R11+R12)/(R11−R12)≤−1.85.

An on-axis thickness of the sixth lens L6 is defined as d11, and a totaloptical length from the object side surface of the first lens L1 to theimage plane Si of the camera optical lens 10 along an optic axis isdefined as TTL. The on-axis thickness d11 and the total optical lengthTTL satisfy a following condition: 0.01≤d11/TTL≤0.04. Within the rangeof the condition, it is beneficial to achieve an ultra-thinness effect.Optionally, the on-axis thickness d11 and the total optical length TTLsatisfy a following condition: 0.02≤d11/TTL≤0.03.

In this embodiment, the object side surface of the seventh lens L7 isconcave in a paraxial region, and the image side surface of the seventhlens L7 is convex in the paraxial region.

A focal length of the camera optical lens 10 is defined as f, and afocal length of the seventh lens L7 is defined as f7. The focal length fand the focal length f7 satisfy a following condition: 2.92≤f7/f≤46.64.With appropriate configuration of the refractive power, the system mayobtain better imaging quality and lower sensitivity. Optionally, thefocal length f and the focal length f7 satisfy a following condition:4.68≤f7/f≤37.31.

A central curvature radius of an object side surface of the seventh lensL7 is defined as R13, and a central curvature radius of the image sidesurface of the seventh lens L7 is defined as R14. The central curvatureradius R13 and the central curvature radius R14 satisfy a followingcondition: 0.10≤(R13+R14)/(R13−R14)≤10.18, which specifies a shape ofthe seventh lens L7. Within the range of the above condition, it isbeneficial to correct aberration of off-axis angle with the developmentof ultra-thinness and wide angle. Optionally, the central curvatureradius R13 and the central curvature radius R14 satisfy a followingcondition: 0.16≤(R13+R14)/(R13−R14)≤8.14.

An on-axis thickness of the seventh lens L7 is defined as d13, and atotal optical length from the object side surface of the first lens L1to the image plane Si of the camera optical lens 10 along an optic axisis defined as TTL. The on-axis thickness d13 and the total opticallength TTL satisfy a following condition: 0.02≤d13/TTL≤0.11. Within therange of the condition, it is beneficial to achieve an ultra-thinnesseffect. Optionally, the on-axis thickness d13 and the total opticallength TTL satisfy a following condition: 0.04≤d13/TTL≤0.09.

In this embodiment, the object side surface of the eighth lens L8 isconvex in a paraxial region, and the image side surface of the eighthlens L8 is concave in the paraxial region.

A focal length of the camera optical lens 10 is defined as f, and afocal length of the eighth lens L8 is defined as f8. The focal length fand the focal length f8 satisfy a following condition: 0.49≤f8/f≤1.89.With appropriate configuration of the focal length, the system mayobtain better imaging quality and lower sensitivity. Optionally, thefocal length f and the focal length f8 satisfy a following condition:0.78≤f8/f≤1.51.

A central curvature radius of an object side surface of the eighth lensL8 is defined as R15, and a central curvature radius of an image sidesurface of the eighth lens L8 is defined as R16. The central curvatureradius R15 and the central curvature radius R16 satisfy a followingcondition: −4.53≤(R15+R16)/(R15−R16)≤−0.73, which specifies a shape ofthe eighth lens. Within the range of the above condition, it isbeneficial to correct aberration of off-axis angle with the developmentof ultra-thinness and wide angle. Optionally, the central curvatureradius R15 and the central curvature radius R16 satisfy a followingcondition: −2.83≤(R15+R16)/(R15−R16)≤−0.91.

An on-axis thickness of the eighth lens L8 is defined as d15, and atotal optical length from the object side surface of the first lens L1to the image plane Si of the camera optical lens 10 along an optic axisis defined as TTL. The on-axis thickness d15 and the total opticallength TTL satisfy a following condition: 0.06≤d15/TTL≤0.21. Within therange of the above condition, it is beneficial to achieve anultra-thinness effect. Optionally, the on-axis thickness d15 and thetotal optical length TTL satisfy a following condition:0.10≤d15/TTL≤0.17.

In this embodiment, the object side surface of the ninth lens L9 isconvex in a paraxial region, and the image side surface of the ninthlens L9 is concave in the paraxial region.

A focal length of the camera optical lens 10 is defined as f, and afocal length of the ninth lens L9 is defined as f9. The focal length fand the focal length f9 satisfy a following condition: −1.62≤f9/f≤−0.49.With appropriate configuration of the refractive power, the system mayobtain better imaging quality and lower sensitivity. Optionally, thefocal length f and the focal length f9 satisfy a following condition:−1.01≤f9/f≤−0.61.

A central curvature radius of an object side surface of the ninth lensL9 is defined as R17, and a central curvature radius of an image sidesurface of the ninth lens L9 is defined as R18. The central curvatureradius R17 and the central curvature radius R18 satisfy a followingcondition: 0.56≤(R17+R18)/(R17−R18)≤1.91, which specifies a shape of theninth lens. Within the range of the above condition, it is beneficial tocorrect aberration of off-axis angle with the development ofultra-thinness and wide angle. Optionally, the central curvature radiusR17 and the central curvature radius R18 satisfy a following condition:0.90≤(R17+R18)/(R17−R18)≤1.53.

An on-axis thickness of the ninth lens L9 is defined as d17, and a totaloptical length from the object side surface of the first lens L1 to theimage plane Si of the camera optical lens 10 along an optic axis isdefined as TTL. The on-axis thickness d17 and the total optical lengthTTL satisfy a following condition: 0.02≤d17/TTL≤0.07. Within the rangeof the condition, it is beneficial to achieve an ultra-thinness effect.Optionally, the on-axis thickness d17 and the total optical length TTLsatisfy a following condition: 0.03≤d17/TTL≤0.05.

In this embodiment, an image height of the camera optical lens 10 is IH,and a total optical length from the object side surface of the firstlens L1 to the image plane Si of the camera optical lens 10 along anoptic axis is defined as TTL. The image height IH and the total opticallength TTL satisfy a following condition: TTL/IH≤1.80. Within the rangeof the condition, it is beneficial to achieve an ultra-thinness effect.

In this embodiment, a field of view FOV of the camera optical lens 10 isgreater than or equal to 75°, so that a wide angle effect is achieved,thereby obtaining a good imaging quality of the camera optical lens.

In this embodiment, an F number FNO of the camera optical lens 10 isless than or equal to 1.91, so that a large aperture is achieved,thereby obtaining a good imaging quality of the camera optical lens.

When the above conditions are satisfied, the camera optical lens 10 maymeet the design requirements for large aperture, wide angle andultra-thinness while maintaining good optical performances. According toproperties of the camera optical lens 10, the camera optical lens 10 isespecially suitable for mobile phone camera lens components composed ofhigh-pixel CCD, CMOS and other imaging elements and WEB camera lens.

The camera optical lens 10 of the present invention will be describedbelow with examples. The symbols recorded in each example will bedescribed as follows. The focal length, on-axis distance, centralcurvature radius, on-axis thickness, inflection point position, andarrest point position are each in unit of millimeter (mm).

TTL denotes a total optical length (on-axis distance from the objectside surface of the first lens L1 to the image plane Si), with a unit ofmillimeter (mm);

F number FNO denotes a ratio of an effective focal length of the cameraoptical lens to an entrance pupil diameter.

Optionally, the object side surface and/or the image side surface of thelens may be provided with inflection points and/or arrest points inorder to meet high-quality imaging requirements. The description belowmay be referred to in specific embodiments as follows.

Design data of the camera optical lens 10 according to Embodiment 1 ofthe present invention are shown in Tables 1 and 2.

TABLE 1 R d nd vd S1 ∞ d0 = −0.200 R1 2.045 d1 = 0.365 nd1 1.5444 v155.82 R2 3.970 d2 = 0.015 R3 2.112 d3 = 0.269 nd2 1.6359 v2 23.82 R41.555 d4 = 0.180 R5 3.573 d5 = 0.348 nd3 1.5444 v3 55.82 R6 −6.630 d6 =0.074 R7 −11.669 d7 = 0.174 nd4 1.5762 v4 41.39 R8 −12.340 d8 = 0.326 R9−26.444 d9 = 0.462 nd5 1.5474 v5 53.63 R10 −5.297 d10 = 0.175 R11 −1.911d11 = 0.090 nd6 1.6700 v6 19.39 R12 −4.067 d12 = 0.015 R13 −21.077 d13 =0.218 nd7 1.5835 v7 30.27 R14 −15.662 d14 = 0.069 R15 1.749 d15 = 0.648nd8 1.5644 v8 43.74 R16 37.953 d16 = 0.417 R17 20.473 d17 = 0.200 nd91.5444 v9 55.82 R18 1.238 d18 = 0.202 R19 ∞ d19 = 0.210 ndg 1.5168 vg64.17 R20 ∞ d20 = 0.146

The reference signs are explained as follows.

S1: aperture;

R: central curvature radius of an optical surface;

R1: central curvature radius of the object side surface of the firstlens L1;

R2: central curvature radius of the image side surface of the first lensL1;

R3: central curvature radius of the object side surface of the secondlens L2;

R4: central curvature radius of the image side surface of the secondlens L2;

R5: central curvature radius of the object side surface of the thirdlens L3;

R6: central curvature radius of the image side surface of the third lensL3;

R7: central curvature radius of the object side surface of the fourthlens L4;

R8: central curvature radius of the image side surface of the fourthlens L4;

R9: central curvature radius of the object side surface of the fifthlens L5;

R10: central curvature radius of the image side surface of the fifthlens L5;

R11: central curvature radius of the object side surface of the sixthlens L6;

R12: central curvature radius of the image side surface of the sixthlens L6;

R13: central curvature radius of the object side surface of the seventhlens L7;

R14: central curvature radius of the image side surface of the seventhlens L7;

R15: central curvature radius of the object side surface of the eighthlens L8;

R16: central curvature radius of the image side surface of the eighthlens L8;

R17: central curvature radius of the object side surface of the ninthlens L9;

R18: central curvature radius of the image side surface of the ninthlens L9;

R19: central curvature radius of the object side surface of the opticalfilter GF;

R20: central curvature radius of the image side surface of the opticalfilter GF;

d: on-axis thickness of a lens and an on-axis distance between lenses;

d0: on-axis distance from the aperture S1 to the object side surface ofthe first lens L1;

d1: on-axis thickness of the first lens L1;

d2: on-axis distance from the image side surface of the first lens L1 tothe object side surface of the second lens L2;

d3: on-axis thickness of the second lens L2;

d4: on-axis distance from the image side surface of the second lens L2to the object side surface of the third lens L3;

d5: on-axis thickness of the third lens L3;

d6: on-axis distance from the image side surface of the third lens L3 tothe object side surface of the fourth lens L4;

d7: on-axis thickness of the fourth lens L4;

d8: on-axis distance from the image side surface of the fourth lens L4to the object side surface of the fifth lens L5;

d9: on-axis thickness of the fifth lens L5;

d10: on-axis distance from the image side surface of the fifth lens L5to the object side surface of the sixth lens L6;

d11: on-axis thickness of the sixth lens L6;

d12: on-axis distance from the image side surface of the sixth lens L6to the object side surface of the seventh lens L7;

d13: on-axis thickness of the seventh lens L7;

d14: on-axis distance from the image side surface of the seventh lens L7to the object side surface of the eighth lens L8;

d15: on-axis thickness of the eighth lens L8;

d16: on-axis distance from the image side surface of the eighth lens L8to the object side surface of the ninth lens L9;

d17: on-axis thickness of the ninth lens L9;

d18: on-axis distance from the image side surface of the ninth lens L9to the object side surface of the optical filter GF;

d19: on-axis thickness of the optical filter GF;

d20: on-axis distance from the image side surface of the optical filterGF to the image plane Si;

nd: refractive index of a d-line;

nd1: refractive index of the d-line of the first lens L1;

nd2: refractive index of the d-line of the second lens L2;

nd3: refractive index of the d-line of the third lens L3;

nd4: refractive index of the d-line of the fourth lens L4;

nd5: refractive index of the d-line of the fifth lens L5;

nd6: refractive index of the d-line of the sixth lens L6;

nd7: refractive index of the d-line of the seventh lens L7;

nd8: refractive index of the d-line of the eighth lens L8;

nd9: refractive index of the d-line of the ninth lens L9;

ndg: refractive index of the d-line of the optical filter GF;

vd: Abbe number;

v1: Abbe number of the first lens L1;

v2: Abbe number of the second lens L2;

v3: Abbe number of the third lens L3;

v4: Abbe number of the fourth lens L4;

v5: Abbe number of the fifth lens L5;

v6: Abbe number of the sixth lens L6;

v7: Abbe number of the seventh lens L7;

v8: Abbe number of the eighth lens L8;

v9: Abbe number of the ninth lens L9;

vg: Abbe number of the optical filter GF.

Table 2 shows aspherical surface data of each lens in the camera opticallens 10 according to Embodiment 1 of the present invention.

TABLE 2 Conic coefficient Aspherical surface coefficient k A4 A6 A8 A10A12 R1   3.9527E−01 1.7320E−02   3.0647E−02 −1.6368E−01   1.1441E+00−4.1058E+00 R2 −5.0778E+01 −5.0560E−01   4.5563E+00 −2.2325E+01  7.5628E+01 −1.7636E+02 R3 −2.3471E+01 −3.8527E−01   3.5468E+00−1.8167E+01   6.2520E+01 −1.4765E+02 R4 −9.2710E+00   1.3807E−01−1.8996E−01   5.7412E−01 −2.3413E+00   6.7440E+00 R5 −3.3559E+01  3.6608E−02 −7.3462E−02 −1.7480E−01   7.2211E−01 −1.6122E+00 R6  3.3774E+01 −8.9915E−02   3.1515E−02 −7.5994E−01   3.6938E+00−8.9936E+00 R7   9.9000E+01 −6.7040E−02 −1.5038E−02 −6.4920E−01  3.0664E+00 −5.8096E+00 R8   9.9000E+01 −6.3400E−02 −2.6265E−02−4.3297E−01   1.6840E+00 −3.1726E+00 R9   9.9000E+01 −1.3589E−01  7.7794E−02 −5.6444E−01   1.3994E+00 −2.2572E+00 R10   1.3476E+01−1.8960E−01   2.3240E−01 −7.5334E−01   9.8971E−01 −2.0925E−01 R11  2.1730E−01 −4.5134E−02   1.1898E−01   5.2551E−01 −2.5797E+00  4.9585E+00 R12 −6.7735E+00 −2.2614E−01   5.8926E−01 −5.8628E−01−5.3498E−01   2.0332E+00 R13   4.9506E+01 −1.1500E−01   8.2646E−01−2.3063E+00   3.4725E+00 −3.2913E+00 R14   9.8916E+01 −7.2713E−02  2.3067E−01 −5.4992E−01   7.1283E−01 −4.7293E−01 R15 −9.8161E+00  5.2232E−02 −3.3346E−01   4.2943E−01 −4.7460E−01   4.7671E−01 R16−9.9000E+01   2.4528E−01 −5.2959E−01   4.9704E−01 −3.0745E−01  1.3981E−01 R17   7.3307E+01 −3.5570E−01 −2.2709E−02   3.3920E−01−3.2168E−01   1.5695E−01 R18 −3.3099E+00 −3.5499E−01   2.7459E−01−1.2264E−01   3.5354E−02 −6.9690E−03 Conic coefficient Asphericalsurface coefficient k A14 A16 A18 A20 R1   3.9527E−01   8.6544E+00−1.0584E+01   6.9918E+00 −1.9223E+00 R2 −5.0778E+01   2.7658E+02−2.7744E+02   1.6048E+02 −4.0676E+01 R3 −2.3471E+01   2.3413E+02−2.3741E+02   1.3876E+02 −3.5537E+01 R4 −9.2710E+00 −1.2078E+01  1.3079E+01 −7.8620E+00   2.0147E+00 R5 −3.3559E+01   2.7556E+00−2.9724E+00   1.8519E+00 −5.2662E−01 R6   3.3774E+01   1.4525E+01−1.5092E+01   8.9059E+00 −2.2360E+00 R7   9.9000E+01   6.7239E+00−5.3263E+00   2.5844E+00 −5.4807E−01 R8   9.9000E+01   3.5968E+00−2.4908E+00   9.2740E−01 −1.2988E−01 R9   9.9000E+01   2.5149E+00−1.7694E+00   6.9459E−01 −1.1453E−01 R10   1.3476E+01 −8.5654E−01  9.9993E−01 −4.5766E−01   7.9095E−02 R11   2.1730E−01 −5.1953E+00  3.0692E+00 −9.5427E−01   1.2131E−01 R12 −6.7735E+00 −2.3209E+00  1.3733E+00 −4.2616E−01   5.5184E−02 R13   4.9506E+01   2.0404E+00−8.0217E−01   1.8146E−01 −1.8104E−02 R14   9.8916E+01   1.0606E−01  4.4757E−02 −2.9311E−02   4.5004E−03 R15 −9.8161E+00 −3.5712E−01  1.6924E−01 −4.5816E−02   5.4770E−03 R16 −9.9000E+01 −4.8037E−02  1.1540E−02 −1.6392E−03   9.9969E−05 R17   7.3307E+01 −4.4836E−02  7.5250E−03 −6.8758E−04   2.6416E−05 R18 −3.3099E+00   9.8418E−04−1.0205E−04   7.1314E−06 −2.4161E−07

Here, k denotes a conic coefficient, and A4, A6, A8, A10, A12, A14, A16,A18, and A20 denote an aspherical coefficient, respectively.

y=(x ² /R){1+[1−(k+1)(x ² /R ²)]^(1/2)}+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶ +A18x ¹⁸ +A20x ²⁰   (1).

Here, x denotes a vertical distance between a point on an asphericalcurve and the optical axis, and y denotes a depth of the asphericalsurface, i.e., a vertical distance between a point on the asphericalsurface having a distance x from the optical axis and a tangent planetangent to a vertex on an aspherical optical axis.

For convenience, the aspherical surface of each lens surface uses theaspherical surface shown in the above formula (1). However, the presentinvention is not limited to the aspherical polynomial form shown in theformula (1).

Design data of the inflection point and the arrest point of each lens inthe camera optical lens 10 according to Embodiment 1 of the presentinvention are shown in Tables 3 and 4. Here, P1R1 and P1R2 denote theobject side surface and image side surface of the first lens L1,respectively. P2R1 and P2R2 denote the object side surface and imageside surface of the second lens L2, respectively. P3R1 and P3R2 denotethe object side surface and image side surface of the third lens L3,respectively. P4R1 and P4R2 denote the object side surface and imageside surface of the fourth lens L4, respectively. P5R1 and P5R2 denotethe object side surface and image side surface of the fifth lens L5,respectively. P6R1 and P6R2 denote the object side surface and imageside surface of the sixth lens L6, respectively. P7R1 and P7R2 denotethe object side surface and image side surface of the seventh lens L7,respectively. P8R1 and P8R2 denote the object side surface and imageside surface of the eighth lens L8, respectively. P9R1 and P9R2 denotethe object side surface and image side surface of the ninth lens L9,respectively. Data in an “inflection point position” column are avertical distance from an inflexion point provided on a surface of eachlens to the optical axis of the camera optical lens 10. Data in an“arrest point position” column are a vertical distance from an arrestpoint provided on the surface of each lens to the optical axis of thecamera optical lens 10.

TABLE 3 Number of Inflexion Inflexion Inflexion Inflexion inflexionpoint point point point points position 1 position 2 position 3 position4 P1R1 0 / / / / P1R2 0 / / / / P2R1 1 0.705 / / / P2R2 0 / / / / P3R1 30.605 0.695 0.955 / P3R2 2 0.775 0.985 / / P4R1 0 / / / / P4R2 1 1.055 // / P5R1 1 1.065 / / / P5R2 1 1.225 / / / P6R1 1 1.115 / / / P6R2 11.015 / / / P7R1 4 0.405 0.535 1.085 1.215 P7R2 2 1.215 1.325 / / P8R1 20.525 1.425 / / P8R2 3 0.575 1.605 1.795 / P9R1 3 0.115 1.255 1.995 /P9R2 1 0.445 / / /

TABLE 4 Number of arrest points Arrest point position 1 P1R1 0 / P1R2 0/ P2R1 0 / P2R2 0 / P3R1 0 / P3R2 0 / P4R1 0 / P4R2 0 / P5R1 0 / P5R2 0/ P6R1 0 / P6R2 1 1.255 P7R1 0 / P7R2 0 / P8R1 1 0.915 P8R2 1 0.835 P9R11 0.185 P9R2 1 1.225

FIG. 2 and FIG. 3 are schematic diagrams of a longitudinal aberrationand a lateral color of the camera optical lens 10 after light having awavelength of 656 nm, 587 nm, 546 nm, 486 nm, and 436 nm passes throughthe camera optical lens 10 according to Embodiment 1, respectively. FIG.4 is a schematic diagram of a field curvature and a distortion of thecamera optical lens 10 after light having a wavelength of 546 nm passesthrough the camera optical lens 10 according to Embodiment 1. A fieldcurvature S in FIG. 4 is a field curvature in a sagittal direction, andT is a field curvature in a meridian direction.

Table 13 below shows numerical values corresponding to various numericalvalues in Embodiments 1, 2, and 3 and parameters specified in theconditions.

As shown in Table 13, Embodiment 1 satisfies various conditions.

In this embodiment, an entrance pupil diameter ENPD of the cameraoptical lens 10 is 1.729 mm, a full-field image height IH is 2.611 mm,and a field of view FOV in a diagonal direction is 75.60°. The cameraoptical lens 10 satisfies design requirements for large aperture, wideangle and ultra-thinness. The on-axis and off-axis chromatic aberrationsare fully corrected, thereby achieving excellent optical performances.

Embodiment 2

Embodiment 2 is basically the same as Embodiment 1, and involves symbolshaving the same meanings as Embodiment 1, and only differencestherebetween are listed below.

FIG. 5 shows a camera optical lens 20 according to Embodiment 2 of thepresent invention. In this embodiment, an object side surface of aseventh lens L7 is convex in the paraxial region.

Design data of the camera optical lens 20 according to Embodiment 2 ofthe present invention are shown in Tables 5 and 6.

TABLE 5 R d nd vd S1 ∞ d0 = −0.200 R1 2.179 d1 = 0.268 nd1 1.5234 v156.76 R2 2.773 d2 = 0.013 R3 1.964 d3 = 0.190 nd2 1.6165 v2 30.97 R41.629 d4 = 0.176 R5 2.703 d5 = 0.391 nd3 1.5584 v3 54.16 R6 −5.704 d6 =0.048 R7 −10.115 d7 = 0.165 nd4 1.5814 v4 40.85 R8 −31.154 d8 = 0.387 R9−37.249 d9 = 0.453 nd5 1.5474 v5 53.63 R10 −4.779 d10 = 0.197 R11 −2.007d11 = 0.130 nd6 1.7283 v6 28.41 R12 −5.296 d12 = 0.024 R13 29.538 d13 =0.335 nd7 1.5936 v7 35.51 R14 −19.612 d14 = 0.023 R15 1.610 d15 = 0.592nd8 1.5644 v8 43.75 R16 4.159 d16 = 0.555 R17 11.048 d17 = 0.190 nd91.5584 v9 54.16 R18 1.338 d18 = 0.181 R19 ∞ d19 = 0.210 ndg 1.5168 vg64.17 R20 ∞ d20 = 0.156

Table 6 shows aspherical surface data of each lens in the camera opticallens 20 according to Embodiment 2 of the present invention.

TABLE 6 Conic coefficient Aspherical surface coefficient k A4 A6 A8 A10A12 R1 −1.1998E−01   1.0159E−02 −1.3751E−02   1.5353E−01 −3.9194E−01  4.8487E−01 R2 −2.5399E+01 −4.3768E−01   4.0054E+00 −1.9313E+01  6.3564E+01 −1.4465E+02 R3 −1.7170E+01 −3.5065E−01   3.3493E+00−1.6346E+01   5.3310E+01 −1.2068E+02 R4 −8.5917E+00   9.5180E−02  7.8629E−02 −1.7663E−01 −1.0154E+00   5.3103E+00 R5 −1.9864E+01  3.2725E−02 −1.2659E−01   8.1285E−02   9.7764E−02 −1.0787E+00 R6  2.6393E+01 −1.4245E−01   1.5068E−01 −5.2069E−01   2.5370E+00−8.3103E+00 R7   8.9617E+01 −1.2108E−01   1.3215E−01 −1.3640E−01  6.4037E−01 −2.9623E+00 R8   9.9000E+01 −1.0199E−01 −3.2305E−02  4.8273E−02 −2.9341E−01   5.9715E−01 R9 −9.9000E+01 −1.3365E−01  5.4847E−02 −5.5397E−01   1.7504E+00 −3.4546E+00 R10   1.0298E+01−1.3728E−01   8.7295E−02 −5.9402E−01   1.1456E+00 −8.1025E−01 R11  4.1694E−01   4.6593E−04   2.8948E−02   1.7175E−01 −1.4409E+00  3.7887E+00 R12 −2.5412E+00 −2.6770E−01   1.0091E+00 −2.1189E+00  2.2802E+00 −8.5491E−01 R13 −9.9000E+01 −1.6691E−01   1.0733E+00−2.9845E+00   4.6381E+00 −4.6360E+00 R14   9.9000E+01 −6.0682E−02  6.4530E−02 −6.3234E−02 −7.5458E−02   2.6690E−01 R15 −9.5281E+00  6.3385E−02 −3.8871E−01   5.6137E−01 −6.9163E−01   7.3458E−01 R16−4.2619E+01   2.2700E−01 −4.8313E−01   4.8037E−01 −3.0957E−01  1.3308E−01 R17   1.9039E+01 −3.8989E−01   1.5620E−01   1.2908E−01−2.2002E−01   1.3618E−01 R18 −4.1894E+00 −3.0664E−01   2.4762E−01−1.2100E−01   3.5267E−02 −5.6459E−03 Conic coefficient Asphericalsurface coefficient k A14 A16 A18 A20 R1 −1.1998E−01   1.6200E−01−1.0587E+00   1.0592E+00 −3.4873E−01 R2 −2.5399E+01   2.2329E+02−2.2182E+02   1.2748E+02 −3.2125E+01 R3 −1.7170E+01   1.8599E+02−1.8521E+02   1.0695E+02 −2.7137E+01 R4 −8.5917E+00 −1.1150E+01  1.2559E+01 −7.5120E+00   1.8820E+00 R5 −1.9864E+01   2.9787E+00−3.6920E+00   2.2650E+00 −5.7251E−01 R6   2.6393E+01   1.6531E+01−1.8575E+01   1.0904E+01 −2.6151E+00 R7   8.9617E+01   7.3028E+00−9.0761E+00   5.4651E+00 −1.2797E+00 R8   9.9000E+01 −7.1249E−01  7.2334E−01 −5.4551E−01   1.7830E−01 R9 −9.9000E+01   4.4166E+00−3.3497E+00   1.3516E+00 −2.2244E−01 R10   1.0298E+01 −1.4835E−01  5.7766E−01 −3.3225E−01   6.4777E−02 R11   4.1694E−01 −4.8514E+00  3.2754E+00 −1.1197E+00   1.5313E−01 R12 −2.5412E+00 −6.1333E−01  8.1748E−01 −3.4369E−01   5.2918E−02 R13 −9.9000E+01   3.0615E+00−1.2829E+00   3.0768E−01 −3.2174E−02 R14   9.9000E+01 −3.2257E−01  2.0072E−01 −6.2367E−02   7.5969E−03 R15 −9.5281E+00 −5.6759E−01  2.7485E−01 −7.3885E−02   8.4335E−03 R16 −4.2619E+01 −3.8935E−02  7.6867E−03 −9.2808E−04   5.0766E−05 R17   1.9039E+01 −4.4950E−02  8.3478E−03 −8.2567E−04   3.3977E−05 R18 −4.1894E+00   3.4547E−04  2.5254E−05 −4.8328E−06   1.9558E−07

Design data of the inflection point and the arrest point of each lens inthe camera optical lens 20 according to Embodiment 2 of the presentinvention are shown in Tables 7 and 8.

TABLE 7 Number of Inflexion Inflexion Inflexion Inflexion Inflexioninflexion point position point position point position point positionpoint position points 1 2 3 4 5 P1R1 0 / / / / / P1R2 0 / / / / / P2R1 10.745 / / / / P2R2 0 / / / / / P3R1 2 0.565 0.795 / / / P3R2 0 / / / / /P4R1 0 / / / / / P4R2 0 / / / / / P5R1 1 1.065 / / / / P5R2 0 / / / / /P6R1 1 1.115 / / / / P6R2 1 0.955 / / / / P7R1 5 0.165 0.255 0.605 1.0551.265 P7R2 2 1.175 1.375 / / / P8R1 2 0.515 1.425 / / / P8R2 4 0.6451.605 1.825 1.995 / P9R1 3 0.145 1.345 1.925 / / P9R2 1 0.445 / / / /

TABLE 8 Number of arrest points Arrest point position 1 P1R1 0 / P1R2 0/ P2R1 0 / P2R2 0 / P3R1 0 / P3R2 0 / P4R1 0 / P4R2 0 / P5R1 0 / P5R2 0/ P6R1 0 / P6R2 1 1.235 P7R1 1 0.745 P7R2 0 / P8R1 1 0.915 P8R2 1 1.065P9R1 1 0.245 P9R2 1 1.085

FIG. 6 and FIG. 7 are schematic diagrams of a longitudinal aberrationand a lateral color of the camera optical lens 20 after light having awavelength of 656 nm, 587 nm, 546 nm, 486 nm, and 436 nm passes throughthe camera optical lens 20 according to Embodiment 2, respectively. FIG.8 is a schematic diagram of a field curvature and a distortion afterlight having a wavelength of 546 nm passes through the camera opticallens 20 according to Embodiment 2.

As shown in Table 13, Embodiment 2 satisfies various conditions.

In this embodiment, an entrance pupil diameter ENPD of the cameraoptical lens 20 is 1.781 mm, a full-field image height IH is 2.611 mm,and a field of view FOV in a diagonal direction is 76.40°. The cameraoptical lens 20 satisfies design requirements for large aperture, wideangle, and ultra-thinness. The on-axis and off-axis chromaticaberrations are fully corrected, thereby achieving excellent opticalperformances.

Embodiment 3

Embodiment 3 is basically the same as Embodiment 1, and involves symbolshaving the same meanings as Embodiment 1, and only differencestherebetween are listed below.

FIG. 9 shows a camera optical lens 30 according to Embodiment 3 of thepresent invention. Design data of the camera optical lens 30 ofEmbodiment 3 of the present invention are shown in Tables 9 and 10.

TABLE 9 R d nd vd S1 ∞ d0 = −0.200 R1 2.099 d1 = 0.303 nd1 1.5584 v154.16 R2 3.614 d2 = 0.017 R3 2.097 d3 = 0.200 nd2 1.6165 v2 30.97 R41.611 d4 = 0.177 R5 3.377 d5 = 0.359 nd3 1.5584 v3 54.16 R6 −6.534 d6 =0.058 R7 −11.631 d7 = 0.186 nd4 1.5750 v4 41.49 R8 −11.983 d8 = 0.385 R9−27.335 d9 = 0.419 nd5 1.5474 v5 53.63 R10 −5.294 d10 = 0.220 R11 −1.904d11 = 0.090 nd6 1.7283 v6 28.41 R12 −4.802 d12 = 0.015 R13 −138.731 d13= 0.287 nd7 1.6165 v7 30.97 R14 −16.280 d14 = 0.045 R15 1.716 d15 =0.615 nd8 1.5644 v8 43.75 R16 15.411 d16 = 0.460 R17 16.033 d17 = 0.200nd9 1.5584 v9 54.16 R18 1.237 d18 = 0.147 R19 ∞ d19 = 0.210 ndg 1.5168vg 64.17 R20 ∞ d20 = 0.206

Table 10 shows aspherical surface data of each lens in the cameraoptical lens 30 of Embodiment 3 of the present invention.

TABLE 10 Conic coefficient Aspherical surface coefficient k A4 A6 A8 A10A12 R1   2.0505E−01   1.4835E−02 −2.2050E−03   1.3403E−01 −3.8080E−01  4.8487E−01 R2 −4.2537E+01 −4.3506E−01   4.0139E+00 −1.9321E+01  6.3565E+01 −1.4465E+02 R3 −2.1346E+01 −3.6802E−01   3.3418E+00−1.6330E+01   5.3312E+01 −1.2068E+02 R4 −9.4724E+00   8.9861E−02  7.1815E−02 −1.8122E−01 −9.8998E−01   5.3103E+00 R5 −3.6747E+01  3.7921E−02 −1.2158E−01   8.2609E−02   1.1239E−01 −1.0787E+00 R6  3.2617E+01 −1.4362E−01   1.5499E−01 −5.2403E−01   2.5499E+00−8.3058E+00 R7   9.9000E+01 −1.1961E−01   1.1977E−01 −1.3478E−01  6.4025E−01 −2.9579E+00 R8   9.9000E+01 −8.6885E−02 −2.7812E−02  4.6585E−02 −2.9227E−01   5.9845E−01 R9   9.9000E+01 −1.4643E−01  5.3080E−02 −5.5466E−01   1.7470E+00 −3.4558E+00 R10   1.3270E+01−1.4560E−01   8.0336E−02 −5.9535E−01   1.1461E+00 −8.0952E−01 R11  3.0332E−01   7.1585E−03   3.1974E−02   1.7034E−01 −1.4409E+00  3.7893E+00 R12 −8.8171E+00 −2.6657E−01   1.0055E+00 −2.1195E+00  2.2798E+00 −8.5508E−01 R13 −9.9000E+01 −1.5002E−01   1.0727E+00−2.9873E+00   4.6373E+00 −4.6360E+00 R14   9.9000E+01 −5.6151E−02  6.9636E−02 −6.2111E−02 −7.6026E−02   2.6644E−01 R15 −1.0333E+01  6.5359E−02 −3.7917E−01   5.5714E−01 −7.4278E−01   8.3208E−01 R16−5.4887E+01   2.1838E−01 −4.7423E−01   4.3036E−01 −2.5228E−01  1.0780E−01 R17   3.9971E+01 −3.8104E−01   6.3365E−02   2.3206E−01−2.5985E−01   1.3893E−01 R18 −3.6572E+00 −3.3784E−01   2.7817E−01−1.4212E−01   5.0644E−02 −1.3147E−02 Conic coefficient Asphericalsurface coefficient k A14 A16 A18 A20 R1   2.0505E−01   1.6200E−01−1.0587E+00   1.0592E+00 −3.4873E−01 R2 −4.2537E+01   2.2329E+02−2.2182E+02   1.2748E+02 −3.2125E+01 R3 −2.1346E+01   1.8599E+02−1.8521E+02   1.0695E+02 −2.7137E+01 R4 −9.4724E+00 −1.1150E+01  1.2559E+01 −7.5120E+00   1.8820E+00 R5 −3.6747E+01   2.9787E+00−3.6920E+00   2.2650E+00 −5.7251E−01 R6   3.2617E+01   1.6531E+01−1.8575E+01   1.0904E+01 −2.6151E+00 R7   9.9000E+01   7.3028E+00−9.0761E+00   5.4651E+00 −1.2797E+00 R8   9.9000E+01 −7.1249E−01  7.2334E−01 −5.4551E−01   1.7830E−01 R9   9.9000E+01   4.4187E+00−3.3497E+00   1.3516E+00 −2.2244E−01 R10   1.3270E+01 −1.4797E−01  5.7742E−01 −3.3236E−01   6.4777E−02 R11   3.0332E−01 −4.8512E+00  3.2752E+00 −1.1197E+00   1.5313E−01 R12 −8.8171E+00 −6.1326E−01  8.1762E−01 −3.4363E−01   5.2901E−02 R13 −9.9000E+01   3.0616E+00−1.2829E+00   3.0769E−01 −3.2188E−02 R14   9.9000E+01 −3.2272E−01  2.0071E−01 −6.2350E−02   7.6128E−03 R15 −1.0333E+01 −6.4297E−01  3.0451E−01 −8.0165E−02   9.0649E−03 R16 −5.4887E+01 −3.5227E−02  8.2581E−03 −1.1664E−03   7.1202E−05 R17   3.9971E+01 −4.2495E−02  7.5418E−03 −7.2360E−04   2.9088E−05 R18 −3.6572E+00   2.4496E−03−3.0697E−04   2.2758E−05 −7.4305E−07

Design data of the inflection point and the arrest point of each lens inthe camera optical lens 30 according to Embodiment 3 of the presentinvention are shown in Tables 11 and 12.

TABLE 11 Number of Inflexion Inflexion Inflexion Inflexion inflexionpoint point point point points position 1 position 2 position 3 position4 P1R1 0 / / / / P1R2 0 / / / / P2R1 1 0.735 / / / P2R2 0 / / / / P3R1 20.575 0.725 / / P3R2 2 0.785 0.995 / / P4R1 0 / / / / P4R2 1 1.055 / / /P5R1 0 / / / / P5R2 1 1.225 / / / P6R1 1 1.115 / / / P6R2 1 0.995 / / /P7R1 4 0.315 0.615 1.075 1.245 P7R2 2 1.185 1.355 / / P8R1 2 0.525 1.425/ / P8R2 3 0.595 1.585 1.795 / P9R1 3 0.125 1.275 1.905 / P9R2 1 0.445 // /

TABLE 12 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 / / P1R2 0 / / P2R1 0 / / P2R2 0 / / P3R1 0 / / P3R2 0/ / P4R1 0 / / P4R2 0 / / P5R1 0 / / P5R2 0 / / P6R1 0 / / P6R2 1 1.245/ P7R1 2 0.455 0.725 P7R2 0 / / P8R1 1 0.915 / P8R2 1 0.875 / P9R1 10.205 / P9R2 1 1.215 /

FIG. 10 and FIG. 11 are schematic diagrams of a longitudinal aberrationand a lateral color after light having a wavelength of 656 nm, 587 nm,546 nm, 486 nm, and 436 nm passes through the camera optical lens 30according to Embodiment 3. FIG. 12 is a schematic diagram of a fieldcurvature and a distortion of the camera optical lens 30 after lighthaving a wavelength of 546 nm passes through the camera optical lens 30according to Embodiment 3.

Table 13 below shows numerical values corresponding to each condition inthis embodiment according to the above conditions. It is appreciatedthat, the camera optical lens 30 in this embodiment satisfies the aboveconditions.

In this embodiment, an entrance pupil diameter ENPD of the cameraoptical lens 30 is 1.721 mm, a full-field image height IH is 2.611 mm,and a field of view FOV in a diagonal direction is 75.80°. The cameraoptical lens 30 satisfies design requirements for large aperture, wideangle and ultra-thinness. The on-axis and off-axis chromatic aberrationsare fully corrected, thereby achieving excellent optical performances.

TABLE 13 Parameters and Embodiment Embodiment Embodiment conditions 1 23 f1/f 2.20 4.95 2.55 d13/d14 3.16 14.57 6.38 f  3.285 3.384 3.27 f17.231 16.743 8.329 f2 −11.315 −19.675 −13.271 f3 4.298 3.325 4.022 f4−409.21 −25.686 −848.633 f5 11.954 9.923 11.861 f6 −5.407 −4.477 −4.353f7 102.144 19.776 29.665 f8 3.21 4.271 3.348 f9 −2.42 −2.733 −2.401  f1215.374 72.668 18.358 FNO 1.90 1.90 1.90 TTL 4.603 4.684 4.599 IH 2.6112.611 2.611 FOV 75.60° 76.40° 75.80°

The above are only preferred embodiments of the present disclosure.Here, it should be noted that those skilled in the art may makemodifications without departing from the inventive concept of thepresent disclosure, but these shall fall into the protection scope ofthe present disclosure.

What is claimed is:
 1. A camera optical lens, comprising from an objectside to an image side: a first lens having positive refractive power; asecond lens having negative refractive power; a third lens havingpositive refractive power; a fourth lens having negative refractivepower; a fifth lens having positive refractive power; a sixth lenshaving negative refractive power; a seventh lens having positiverefractive power; an eighth lens having positive refractive power; and aninth lens having negative refractive power, wherein the camera opticallens satisfies following conditions:2.20≤f1/f≤5.00; and3.00≤d13/d14≤15.00, where f denotes a focal length of the camera opticallens; f1 denotes a focal length of the first lens; d13 denotes anon-axis thickness of the seventh lens; and d14 denotes an on-axisdistance from an image side surface of the seventh lens to an objectside surface of the eighth lens.
 2. The camera optical lens as describedin claim 1, wherein the camera optical lens satisfies a followingcondition:(R7+R8)/(R7−R8)≤−1.90, where R7 denotes a central curvature radius of anobject side surface of the fourth lens; and R8 denotes a centralcurvature radius of an image side surface of the fourth lens.
 3. Thecamera optical lens as described in claim 1, wherein the camera opticallens satisfies following conditions:−16.67≤(R1+R2)/(R1−R2)≤−2.08; and0.03≤d1/TTL≤0.12, where R1 denotes a central curvature radius of anobject side surface of the first lens; R2 denotes a central curvatureradius of an image side surface of the first lens; d1 denotes an on-axisthickness of the first lens; and TTL denotes a total optical length fromthe object side surface of the first lens to an image plane of thecamera optical lens along an optic axis.
 4. The camera optical lens asdescribed in claim 1, wherein the camera optical lens satisfiesfollowing conditions:−11.63≤f2/f≤−2.30;3.29≤(R3+R4)/(R3−R4)≤16.09; and0.02≤d3/TTL≤0.09, where f2 denotes a focal length of the second lens; R3denotes a central curvature radius of an object side surface of thesecond lens; R4 denotes a central curvature radius of an image sidesurface of the second lens; d3 denotes an on-axis thickness of thesecond lens; and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.
 5. The camera optical lens as described in claim 1,wherein the camera optical lens satisfies following conditions:0.49≤f3/f≤1.96;−0.71≤(R5+R6)/(R5−R6)≤−0.20; and0.04≤d5/TTL≤0.13, where f3 denotes a focal length of the third lens; R5denotes a central curvature radius of an object side surface of thethird lens; R6 denotes a central curvature radius of an image sidesurface of the third lens; d5 denotes an on-axis thickness of the thirdlens; and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.
 6. The camera optical lens as described in claim 1, whereinthe camera optical lens satisfies following conditions:−519.04≤f4/f≤−5.06; and0.02≤d7/TTL≤0.06, where f4 denotes a focal length of the fourth lens; d7denotes an on-axis thickness of the fourth lens; and TTL denotes a totaloptical length from an object side surface of the first lens to an imageplane of the camera optical lens along an optic axis.
 7. The cameraoptical lens as described in claim 1, wherein the camera optical lenssatisfies following conditions:1.47≤f5/f≤5.46;0.65≤(R9+R10)/(R9−R10)≤2.25; and0.05≤d9/TTL≤0.15, where f5 denotes a focal length of the fifth lens; R9denotes a central curvature radius of an object side surface of thefifth lens; R10 denotes a central curvature radius of an image sidesurface of the fifth lens; d9 denotes an on-axis thickness of the fifthlens; and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.
 8. The camera optical lens as described in claim 1, whereinthe camera optical lens satisfies following conditions:−3.29≤f6/f≤−0.88;−5.55≤(R11+R12)/(R11−R12)≤−1.48; and0.01≤d11/TTL≤0.04, where f6 denotes a focal length of the sixth lens;R11 denotes a central curvature radius of an object side surface of thesixth lens; R12 denotes a central curvature radius of an image sidesurface of the sixth lens; d11 denotes an on-axis thickness of the sixthlens; and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.
 9. The camera optical lens as described in claim 1, whereinthe camera optical lens satisfies following conditions:2.92≤f7/f≤46.64;0.10≤(R13+R14)/(R13−R14)≤10.18; and0.02≤d13/TTL≤0.11, where f7 denotes a focal length of the seventh lens;R13 denotes a central curvature radius of an object side surface of theseventh lens; R14 denotes a central curvature radius of the image sidesurface of the seventh lens; and TTL denotes a total optical length froman object side surface of the first lens to an image plane of the cameraoptical lens along an optic axis.
 10. The camera optical lens asdescribed in claim 1, wherein the camera optical lens satisfiesfollowing conditions:0.49≤f8/f≤1.89;−4.53≤(R15+R16)/(R15−R16)≤−0.73; and0.06≤d15/TTL≤0.21, where f8 denotes a focal length of the eighth lens;R15 denotes a central curvature radius of an object side surface of theeighth lens; R16 denotes a central curvature radius of an image sidesurface of the eighth lens; d15 denotes an on-axis thickness of theeighth lens; and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.
 11. The camera optical lens as described in claim1, wherein the camera optical lens satisfies following conditions:−1.62≤f9/f≤−0.49;0.56≤(R17+R18)/(R17−R18)≤1.91; and0.02≤d17/TTL≤0.07, where f9 denotes a focal length of the ninth lens;R17 denotes a central curvature radius of an object side surface of theninth lens; R18 denotes a central curvature radius of an image sidesurface of the ninth lens; d17 denotes an on-axis thickness of the ninthlens; and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.